mirror of
https://github.com/libretro/scummvm.git
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91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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/* SCI cursor functions */
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#include "sci/gfx/gfx_system.h"
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#include "sci/gfx/gfx_resource.h"
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#include "sci/gfx/gfx_tools.h"
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namespace Sci {
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#define CURSOR_RESOURCE_SIZE 68
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#define CURSOR_SIZE 16
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#define GFX_SCI01_CURSOR_COLORS_NR 3
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#define GFX_SCI0_CURSOR_COLORS_NR 2
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gfx_pixmap_color_t gfx_sci01_cursor_colors[GFX_SCI01_CURSOR_COLORS_NR] = {
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{GFX_COLOR_INDEX_UNMAPPED, 0x00, 0x00, 0x00},
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{GFX_COLOR_INDEX_UNMAPPED, 0xff, 0xff, 0xff},
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{GFX_COLOR_INDEX_UNMAPPED, 0xaa, 0xaa, 0xaa}
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};
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gfx_pixmap_t *gfxr_draw_cursor(int id, byte *resource, int size, bool isSci01) {
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int colors[4] = {0, 1, GFX_CURSOR_TRANSPARENT, 1};
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int line;
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byte *data;
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gfx_pixmap_t *retval;
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if (isSci01)
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colors[3] = 2;
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if (size != CURSOR_RESOURCE_SIZE) {
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GFXERROR("Expected resource size of %d, but found %d\n", CURSOR_RESOURCE_SIZE, size);
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return NULL;
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}
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retval = gfx_pixmap_alloc_index_data(gfx_new_pixmap(CURSOR_SIZE, CURSOR_SIZE, id, 0, 0));
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// FIXME: don't copy palette
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retval->palette = new Palette(gfx_sci01_cursor_colors, isSci01 ? GFX_SCI01_CURSOR_COLORS_NR : GFX_SCI0_CURSOR_COLORS_NR);
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retval->palette->name = "cursor";
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retval->color_key = GFX_CURSOR_TRANSPARENT;
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if (isSci01) {
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retval->xoffset = READ_LE_UINT16(resource);
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retval->yoffset = READ_LE_UINT16(resource + 2);
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} else if (resource[3]) // center
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retval->xoffset = retval->yoffset = CURSOR_SIZE / 2;
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else
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retval->xoffset = retval->yoffset = 0;
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resource += 4;
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data = retval->index_data;
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for (line = 0; line < 16; line++) {
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int mask_a = READ_LE_UINT16(resource + (line << 1));
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int mask_b = READ_LE_UINT16(resource + 32 + (line << 1));
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int i;
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for (i = 0; i < 16; i++) {
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int color_code = ((mask_a << i) & 0x8000) | (((mask_b << i) >> 1) & 0x4000);
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*data++ = colors[color_code >> 14];
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}
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}
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return retval;
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}
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} // End of namespace Sci
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